Tsunami Rock, also known as "The Maka Sio’ata", is a fascinating geological feature of Tonga, located amidst coconut fields in the village of Kala’ua, Tongatapu. This massive boulder, situated some distance from the coast, is believed by geologists to have been displaced from a nearby reef by a tsunami. Visitors can capture memorable photos of this natural wonder and learn about its intriguing history from the interpretation panel at the site.